/* Easy Group 品牌系统
   取自品牌板 2d：Beam / Signal / Core / Deep / Void 五阶蓝
   字体 Space Grotesk 500 + IBM Plex Mono 400
   子品牌沿同一蓝色阶做色相偏移，几何形状完全一致 */

:root {
  --beam:   #8CD8FA;
  --signal: #12ABF2;
  --core:   #1E74E8;
  --deep:   #114FA8;
  --void:   #0A0E13;

  --bg:        var(--void);
  --bg-raised: #10161F;
  --bg-sunken: #070A0E;
  --line:      #1E2A38;
  --line-soft: #17212C;

  --text:      #E8F2FA;
  --text-dim:  #8FA6BC;
  --text-mute: #5C7186;

  --ok:   #2FBE87;
  --warn: #E0A33A;
  --bad:  #E05C6B;

  /* 子品牌色相：与品牌板 2c 一致 */
  --tool-material: #12C4F2;
  --tool-proposal: #3B82F6;
  --tool-crm:      #14C2AE;
  --tool-supply:   #8B8FE8;

  --radius:    10px;
  --radius-sm: 6px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Space Grotesk", Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(900px 480px at 12% -8%, rgba(30,116,232,.16), transparent 60%),
    radial-gradient(760px 420px at 96% 4%, rgba(18,171,242,.10), transparent 58%),
    var(--bg);
}

a { color: var(--signal); text-decoration: none; }
a:hover { text-decoration: underline; }

.mono, code, kbd {
  font-family: var(--mono);
  font-weight: 400;
  letter-spacing: -.01em;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--signal);
}

/* ---------------------------------------------------------------- 标识 */

.mark { display: block; flex: 0 0 auto; }

.lockup {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lockup .wordmark {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1;
}

.lockup .wordmark .tld { color: var(--signal); }

.lockup .tagline {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-top: 5px;
}

/* ---------------------------------------------------------------- 布局 */

.shell { max-width: 1240px; margin: 0 auto; padding: 28px 24px 64px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

.topbar nav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.card {
  background: linear-gradient(180deg, var(--bg-raised), #0C1219);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.card h2 { margin: 0 0 4px; font-size: 16px; font-weight: 500; letter-spacing: -.01em; }
.card p  { margin: 0; color: var(--text-dim); font-size: 13.5px; line-height: 1.6; }

.grid { display: grid; gap: 16px; }
.grid.c2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.c3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.c4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .grid.c2, .grid.c3, .grid.c4 { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; align-items: flex-start; }
}

/* ---------------------------------------------------------------- 控件 */

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--core);
  color: #fff;
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 500;
  min-height: 38px;
  padding: 0 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background .16s ease, border-color .16s ease, transform .12s ease;
}

.btn:hover { background: #2A82F5; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.btn.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text-dim);
}
.btn.ghost:hover { border-color: var(--signal); color: var(--text); background: rgba(18,171,242,.08); }

.btn.quiet { background: rgba(18,171,242,.12); color: var(--beam); }
.btn.quiet:hover { background: rgba(18,171,242,.2); }

label.field { display: block; margin-bottom: 14px; }

label.field > span {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 6px;
}

input[type=text], input[type=email], input[type=password], input[type=number], input[type=search], select, textarea {
  width: 100%;
  min-height: 40px;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 0 12px;
  font-family: var(--sans);
  font-size: 14px;
}

textarea { padding: 10px 12px; min-height: 84px; resize: vertical; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(18,171,242,.14);
}

/* ---------------------------------------------------------------- 徽标与表格 */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--text-dim);
}

.tag.on   { border-color: rgba(47,190,135,.45); color: var(--ok);   background: rgba(47,190,135,.10); }
.tag.warn { border-color: rgba(224,163,58,.45); color: var(--warn); background: rgba(224,163,58,.10); }
.tag.bad  { border-color: rgba(224,92,107,.45); color: var(--bad);  background: rgba(224,92,107,.10); }

/* 数据溯源标记 —— 契约第 6 节要求前端必须显示 */
.prov { font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; padding: 2px 6px; border-radius: 4px; }
.prov.measured  { color: #7BE3B6; background: rgba(47,190,135,.14); }
.prov.modelled  { color: #8CD8FA; background: rgba(18,171,242,.14); }
.prov.estimated { color: #E8C98A; background: rgba(224,163,58,.14); }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }

th {
  text-align: left;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
}

td { padding: 10px; border-bottom: 1px solid var(--line-soft); color: var(--text-dim); }
tbody tr:hover td { background: rgba(18,171,242,.04); color: var(--text); }

.num { font-family: var(--mono); font-weight: 400; font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- 指标 */

.stat { padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-raised); }
.stat .k { font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-mute); }
.stat .v { font-size: 28px; font-weight: 500; letter-spacing: -.02em; margin: 6px 0 2px; font-variant-numeric: tabular-nums; }
.stat .d { font-size: 12px; color: var(--text-dim); }

.notice {
  border-left: 3px solid var(--signal);
  background: rgba(18,171,242,.07);
  padding: 12px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}

.notice.bad  { border-left-color: var(--bad);  background: rgba(224,92,107,.08); }
.notice.warn { border-left-color: var(--warn); background: rgba(224,163,58,.08); }

.hidden { display: none !important; }